Propagation of Optical and Solar Radiations in the Descriptions of Geometrical Optics

For description of optical radiations in a geometrical optics the notions of optical ray and optical beam are used. Optical ray is a line, along which the energy of optical radiations spreads     more...

Properties of Solar and Optical Radiations in the Descriptions of Physical Optics

At researches of properties of solar and optical radiations the basic laws of physical and geometrical optics are used, as well as a quantum theory of interaction of radiations with the matter     more...

Optical radiations in the systems of sun power engineering

Systems of sun energy are the most promising type of renewable technologies, which will allow in the future getting the enormous amount of clean and sustainable energy     more...

Tendencies of development of batteries for electrical grid and vehicle applications

The battery - electric device, that converts chemical energy into electrical energy has become a common power source for many industrial and household applications, and is now a multi-billion dollar industry.     more...

The morning of the molecular hydro-power engineering

Subsequent development of classic macroscopic hydropower engineering is broken by small quantity of the unused hydrological resources and negative influencing of the hydroelectric power stations on an environment     more...

Le Malade imaginaire: water and wind give new life to old hydropower technology

The challenges of hydropower engineering. River flows and wind are considered as the oldest renewable energy sources that were used by people for implementation of certain mechanical works, beginning from the water-supply of settlements, irrigation of agricultural lands, grinding of corn and concluding by putting into motion of industrial machines     more...

Quo vadis, Concentrating Technologies? Luminescent Optical Concentrators or Light Amplifiers?

The researches conducted by Greenpeace International, European Thermal Electricity Association and International Energy Agency found that by 2050 about 25% of all necessities of humanity in energy will be satisfied by means of concentrating solar technologies. Such prospects multiply the requirements to optical concentrators     more...

Optical Waveguide Concentrators of Photovoltaic Solar Modules

The possibilities of production of electric power with the help of only electronic photovoltaic technologies are very attractive. But it is necessary to admit that this fantastically large attractiveness can not be in a complete measure realized in tearing off from optical methods and optical devices     more...

Thin film diffractive holographic solar concentrators

One of serious problems, which appears before the developers of sun elements, is a creation of high effective thin film devices of concentration of optical radiation     more...

Refractive and mirror concentrators of solar power systems

The necessity of creation of powerful solar plants needs in the use of large beams of sun radiation that are caught by large optical focusing elements     more...